The SAW tags were simulated using FEM software COMSOL,the SAW tags were produced and tested accordingly.The simulation of the SAW tag included the characteristic frequency simulation,the inter-digital transducer excitation efficiency simulation and the echo characteristics simulation.Three groups of SAW tags were experimentally tested by the network analyzer,the test conclusions are as follows:the characteristic frequency is consistent with the design requirements;the excitation efficiency can be improved b...
0引言射频识别(radio frequency identification,RFID)技术是近年来在自动识别领域出现的若干革命性技术之一。与广泛采用的条形码等自动识别技术相比,RFID具有读取距离远、穿透力强、抗污染、效率高、信息量大等特点。传统的RFID系统使用的标签都是基于IC技术的,近些年基于声?
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